저도 같은 일로 문의 했었는데 아래와 같은 답변을 받았어요~
A replacement licence label can be obtained from any of our agents by completing an Application for replacement label (form MR6) at a cost of $4.11.
Our agents are:
Automobile Association (AA)
New Zealand Post
Vehicle Inspections New Zealand (VINZ)
Vehicle Testing New Zealand (VTNZ)